I think these sediments are merely a pile of loose and unconsolidated particles . How are they converted into solidated hard strata ?
但是这些沉积物仅仅是一堆松散的,未固结的颗粒物质,它们是怎么变成固结和坚硬的岩石的呢?
A lot are unconsolidated piles of rubble left over from the beginning of the solar system .
其中有很多是在太阳系形成之初留下的并不坚固的瓦砾堆。
Because of the danger of hammering pipes into somewhat unconsolidated debris piles that contain large boulders during a downpour , we didn 't take any samples that day ; the cold temperatures sent us back to the office rather quickly in any case .
Unconsolidated consciousness of environmental protection , lack of thorough understanding at ecological civilization , a flawed system design , and hasty actions taken for instant benefits are the main restrictive factors in our present construction of ecological civilization .
" In guatemala city [ the pumice is ] unconsolidated , it ` s loose , " he said . " It hasn ` t been hardened into a rock yet , so it ` s easily eroded , especially by swift running water . "